The HPLC analysis method was evaluated through specificity, linearity, limit of detection, intraday and interday precision. The chromatograms showed stable base line and no interference at the retention time of RPV. The calibration curves of RPV were linear over the concentration range of 0.1–40 mg/mL with correlation coefficient r 0.9997. The limit of detection was 0.1 mg/mL. The precision of the method indicated that all coefficients of variation were below 15m.